All the rules are broken as a sect of lawless marauders decides that the annual Purge does not stop at daybreak and instead should never end as they chase a group of immigrants who they want to punish because of their harsh historical past.
After having visions of a member of her support group who killed herself, a woman who also suffers with chronic pain seeks out the widower of the suicide.
During his long career, bounty hunter Ralph "Papa" Thorson has caught over 5,000 criminals. Now, while he is working on apprehending fugitives in Illinois, Texas and Nebraska, he himself is being hunted by a psychotic killer.
